It’s solved in Ionic v4
P.S.: About how to include web components build with Stencil in an Ionic v4 app, follow [SOLVED] Include Stencil component in Ionic v4/Angular v6
It’s solved in Ionic v4
P.S.: About how to include web components build with Stencil in an Ionic v4 app, follow [SOLVED] Include Stencil component in Ionic v4/Angular v6